Operculodinium xanthium

xanthium (Benedek, 1972, p.27-28, pl.9, fig.8; text-fig.9) Stover and Evitt, 1978, p.179.  Emendation: Benedek and Sarjeant, 1981, p.342-343, as Lingulodinium xanthium.  Holotype: Benedek, 1972, pl.9, fig.8; Benedek and Sarjeant, 1981, fig.9, no.5.  Originally Cordosphaeridium, subsequently (and now) Operculudinium, thirdly Lingulodinium.  Stover and Hardenbol (1994, p.33) retained this species in Operculodinium.  Age: mid-late Oligocene.

Parent: Operculodinium